The Crius II RTA is new member of Crius series tank. It has new designed deck for single coil. Airflow hit the coil from both side and bottom to make sure you get the best vapor experience and huge vapor production. The RTA can hold 3.5ml liquid and when you refill it you just need to push up the top cap and fill the tank without leaking issues. It also comes with bottom airflow control and precise design of air circulation system. It also has detachable structure for easy to clean.